Split coil type bubble domain driving apparatus

Details Split coil type bubble domain driving apparatus Split coil type bubble domain driving apparatus

1972-06-27

1976-03-09

Urynowicz, Jr., Stanley M.

Communications: electrical

Digital comparator systems

340174TB, G11C 1114, G11C 800

Patent

active

039434974

ABSTRACT:
A bubble domain driving apparatus is provided in which a large memory device with a storage capacity of 256 megabits, for example, is divided into 64 smaller memory elements, each thereof comprising one or plurality of thin magnetic film strips for bubble domain, and each of the 4-megabit smaller memory elements is provided with its own coils for applying in the plane thereof bubble domain driving rotating fields with the coils adapted to be selectively energized.

REFERENCES:
patent: 2917727 (1959-12-01), Reach, Jr.
patent: 3534347 (1970-10-01), Bobeck
patent: 3543252 (1970-11-01), Perneski
patent: 3703712 (1972-11-01), Bobeck et al.
patent: 3711838 (1973-01-01), Kefalas

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